Add empty path check for cross-platform consistency.
Make Eto.Generator.Cache public.
Add Generator.HasCurrent.
Merge pull request #11 from cwensley/corlissdev

Mac and WPF changes
Graphics.CompositingMode, in progress.
Remove Form.KeyPreview.
Remove Form.TransparencyKey.
Add a getter for Graphics.CompositingMode, and add a Gtk implementation.
Remove Graphics.CompositingMode.
Wpf: Allow controls to be re-added to other containers
Added RadioButtonList/EnumRadioButtonList and test
Gtk: RadioButton will no longer auto select first item to work like other platforms
Fix TableLayout problem when adding an existing control to a new table
WinForms: Optimize WinForms by disabling redrawing of controls when SuspendLayout is called
Use static com interop assembly to enable building fully in mono
Missing changes for interop updates
Implement Window.WindowStyle, ShowInTaskbar, TopMost, SendToBack, BringToFront
Window.GotFocus/LostFocus now fire when the window is activated/deactivated
Window.Minimized/Maximized events are now deprecated by WindowStateChanged
Obsoleted Control.Hidden event
Cleanup
iOS: Fix Splitter when using MGSplitController
Update MGSplitController so it works with mono 3.0.4
Gtk: fix adding tabs to TabControl after it is loaded on a form